Question about QSC GX5 Stereo Power Amplifier

1 Answer

THE POWER SWITCH ON THE FRONT OF MY GX5 IS GOING BAD, AMP IS LOSING POWER, STARTS WORKING AGAIN WHEN I FLIP THE SWITH ON AND OFF.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • QSC Master
  • 5,603 Answers

A lot of the rocker switches fail due to starting surge of these amps. You can try squirting a little CRC226 into the back if it has holes. You can get this product at Home Depot in the electrical dept. Use ONLY this product. Blue can about $2.70
If that doesn't fix it, then replacement of the switch is in order.

Posted on Mar 26, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My peavey amp pv 2600 only plays on channel A. No output on the B side


Hello,

Check the "BRIDGE" switch position, "IN" for "BRIDGE", "OUT" for "STEREO", and clean ALL back switches with a cleaning spray and then run the amp again, also check the two green lights activation at front, if they activate, then amp is certainly working, let me know further.

Jan 28, 2013 | Peavey Pv 2600 Power Amplifier

1 Answer

Volume issue


Tubes run hot in order to function. They degrade over time unlike transistors which usually work or don't work.
You should keep some spares around especially if you are out doing gigs.
Guessing at which tube is bad will be expensive.
With the renewed use of tubes in amps, there may be some tube testing available at a music store. Call around and see. Pull all you tubes and go test them.

Sep 24, 2017 | Peavey Vypyr Tube 120 Amp Combo

1 Answer

I have a beringer sx3242fx, i need to know the best compatible amplifier to use my samson speaker that pushes up to 500 w


Almost any amplifier will work so there is no "best"... Just make sure the amp RMS rating is a bit below the RMS rating of the speaker for safety of the speaker. A QSC GX5 would be a candidate. You would use one side of it for each speaker if you have two, or use only one side for a single speaker. A lot of pro's seem to use these amps. USE BALANCED interconnections either XLR or TRS cables AND for sure power the amp and the mixer from the same receptacle... it often means running an extension cord like the pro's do to avoid ground bounce noise AND damage to the equipment.

Sep 02, 2011 | Behringer Sx3242fx Eurodesk 32-channel...

1 Answer

When I leave my right monitor on for longer than 20 minutes I get an accending hissing noise before all sound completely cuts out. The light stays on so I know it's recieving power, when I try other...


Sounds like you have a problem in the amplifier section. Could be a bad capacitor or a floating ground. As a charge builds it will create the hiss and when it discharges, it surges through the amp causing it to shut down. You'll probably want to send them in for service.

Jul 01, 2011 | KRK RoKit 6 G2 68W 6 TwoWay Active...

2 Answers

I have a Fender Frontman 212r amp. The problem seems to be when I put the volume upto past 4/10 [40%] The amp gives out an awful crackling sound and power light etc flickers on and off. I have had the map...


When i turn on my 212R it turns on in drive channel. if footswith is plugged in, then it turns on in the clean channel, but after switching in drive it is impossible to switch it back in clean channel. What could be wrong? Swith position doesnt change anything and it seems like switch is OK.

Nov 27, 2010 | Fender Frontman 212R 100W 2x12 Guitar...

1 Answer

My 100hdfx has a problem switching channels. Both overdrive channels work fine but the clean channel is none existant. If you switch it to the clean channel and turn it up all the way you can faintly here...


have you tried the footswitch to change channels. also. my amp has to be in channel 2 position (with the button on the head) before i can use the footswitch. sometimes the input/footswitch jack wears out and you need to bend the internal tip/ring tabs of the jack to make better contact. also like on my fender amp, i had just a standard mono instrument cable going to my footswitch and it was acting wierd cause it needed a stereo instrument cable. one last thing on the grounding resistors on the pcb, they get hot and break the solder welds which messes with all sorts of stuff in amps. usually look like sugar cubes , cement resistor. 5watt usually under 1k ohm. check for bad solder welds on the pcb where the big resistors are and the switches/buttons and at the footswitch. there may be a bad ic or transistor for the channel swithing

Dec 30, 2009 | Marshall MG100HDFX 100-Watt Amplifier Head

1 Answer

Power switch replacement


Some of the rocker switches can be PRIED out from the outside as they have plastic "springs" at the ends... look at you new one.

IF you can pry the old one out you MAY have long enough wires to allow the old one to come out a bit and transfer to new one and push it back in.

ELSE you have to take the amp out.

USUALLY the speaker and the board it sits on remains in the cabinet.

There will be screws that hold the amp in... You kind of have to try to find which to remove to release the amp chassis. You may have to remove the speaker wires or wires to a reverb tank... MARK ALL these and restore to exact same places.

HINT: Once the screws are out, OFTEN the Tolex cabinet covering loves to catch on the chassis so you have to fight to get the chassis out... a real pain and THEN putting it back in the Tolex fights you again !!!

Dec 15, 2009 | Marshall Mg50dfx 50-Watt Combo Guitar...

1 Answer

JCM2000 DSL100 No Sound


Not likely to be a fuse. The bane of electrical amps are the connectors.

Often the speaker and more commonly the input 1/4 inch connectors go bad. Sometimes caused by side loads when cables are yanked or tripped over.

Be careful of running amps IF the speakers are not connected OR have bad connectors or cables. You can arc over the tubes or pop transistors.

Get a cheap Volt-ohmeter from HarborFreight or Radio Shack and test your cables and connectors.

For a tube amp, your should find relatively low resistance at the speaker connector (certainly under 20 ohms). Do this with power off.

Sep 09, 2009 | Marshall Music

1 Answer

The dfx doesn't switch off with either the foot switch or the front panel switch


http://www.ampix.org/albums/userpics/10003/MArshall_MG100DFX.pdf Heres the schematic. Check the footswitch jack for bad solder joints to the board. If the channel indicator isn't lighting up check for 5 volts at R38 and R39. If you have no experience with troubleshooting I wouldn't recommend working on the amp unless you learn more about the subject. To start do not work on the amp while it is powered up as the capacitors store a lethal charge and even if you don't get hurt it is easy to damage components via a short circuit. I hope some of this helps.

Aug 04, 2009 | Marshall Mg100dfx 100-Watt Combo Guitar...

Not finding what you are looking for?
QSC GX5 Stereo Power Amplifier Logo

Related Topics:

168 people viewed this question

Ask a Question

Usually answered in minutes!

Top QSC Music Experts

Michial Gueffroy

Level 3 Expert

1138 Answers

yadayada
yadayada

Level 3 Expert

79865 Answers

Brad Brown

Level 3 Expert

17173 Answers

Are you a QSC Music Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...